X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fdata%2Fdecoderstack.cpp;h=b79326d83363ed70efa20580a62bdf4068dcddbe;hp=ef497f72bb29e2e80eaba88676340c6d499949d7;hb=da50281d69f15d125b56971a3009fd31cbbab58b;hpb=c4dd1e4ee295c4fc6bc3db0feaf826df4807cc91

diff --git a/pv/data/decoderstack.cpp b/pv/data/decoderstack.cpp
index ef497f72..b79326d8 100644
--- a/pv/data/decoderstack.cpp
+++ b/pv/data/decoderstack.cpp
@@ -57,7 +57,7 @@ const double DecoderStack::DecodeThreshold = 0.2;
 const int64_t DecoderStack::DecodeChunkLength = 4096;
 const unsigned int DecoderStack::DecodeNotifyPeriod = 65536;
 
-mutex DecoderStack::global_decode_mutex_;
+mutex DecoderStack::global_srd_mutex_;
 
 DecoderStack::DecoderStack(pv::Session &session,
 	const srd_decoder *const dec) :
@@ -119,7 +119,7 @@ double DecoderStack::samplerate() const
 	return samplerate_;
 }
 
-double DecoderStack::start_time() const
+const pv::util::Timestamp& DecoderStack::start_time() const
 {
 	return start_time_;
 }
@@ -136,8 +136,7 @@ std::vector<Row> DecoderStack::get_visible_rows() const
 
 	vector<Row> rows;
 
-	for (const shared_ptr<decode::Decoder> &dec : stack_)
-	{
+	for (const shared_ptr<decode::Decoder> &dec : stack_) {
 		assert(dec);
 		if (!dec->shown())
 			continue;
@@ -150,8 +149,7 @@ std::vector<Row> DecoderStack::get_visible_rows() const
 			rows.push_back(Row(decc));
 
 		// Add the decoder rows
-		for (const GSList *l = decc->annotation_rows; l; l = l->next)
-		{
+		for (const GSList *l = decc->annotation_rows; l; l = l->next) {
 			const srd_decoder_annotation_row *const ann_row =
 				(srd_decoder_annotation_row *)l->data;
 			assert(ann_row);
@@ -213,8 +211,7 @@ void DecoderStack::begin_decode()
 		}
 
 	// Add classes
-	for (const shared_ptr<decode::Decoder> &dec : stack_)
-	{
+	for (const shared_ptr<decode::Decoder> &dec : stack_) {
 		assert(dec);
 		const srd_decoder *const decc = dec->decoder();
 		assert(dec->decoder());
@@ -224,8 +221,7 @@ void DecoderStack::begin_decode()
 			rows_[Row(decc)] = decode::RowData();
 
 		// Add the decoder rows
-		for (const GSList *l = decc->annotation_rows; l; l = l->next)
-		{
+		for (const GSList *l = decc->annotation_rows; l; l = l->next) {
 			const srd_decoder_annotation_row *const ann_row =
 				(srd_decoder_annotation_row *)l->data;
 			assert(ann_row);
@@ -276,9 +272,9 @@ uint64_t DecoderStack::max_sample_count() const
 {
 	uint64_t max_sample_count = 0;
 
-	for (auto i = rows_.cbegin(); i != rows_.end(); i++)
+	for (const auto & row : rows_)
 		max_sample_count = max(max_sample_count,
-			(*i).second.get_max_sample());
+			row.second.get_max_sample());
 
 	return max_sample_count;
 }
@@ -286,11 +282,22 @@ uint64_t DecoderStack::max_sample_count() const
 optional<int64_t> DecoderStack::wait_for_data() const
 {
 	unique_lock<mutex> input_lock(input_mutex_);
+
+	// Do wait if we decoded all samples but we're still capturing
+	// Do not wait if we're done capturing
 	while (!interrupt_ && !frame_complete_ &&
-		samples_decoded_ >= sample_count_)
+		(samples_decoded_ >= sample_count_) &&
+		(session_.get_capture_state() != Session::Stopped)) {
+
 		input_cond_.wait(input_lock);
+	}
+
+	// Return value is valid if we're not aborting the decode,
 	return boost::make_optional(!interrupt_ &&
-		(samples_decoded_ < sample_count_ || !frame_complete_),
+		// and there's more work to do...
+		(samples_decoded_ < sample_count_ || !frame_complete_) &&
+		// and if the end of the data hasn't been reached yet
+		(!((samples_decoded_ >= sample_count_) && (session_.get_capture_state() == Session::Stopped))),
 		sample_count_);
 }
 
@@ -304,9 +311,7 @@ void DecoderStack::decode_data(
 		DecodeChunkLength / segment_->unit_size();
 
 	for (int64_t i = 0; !interrupt_ && i < sample_count;
-		i += chunk_sample_count)
-	{
-		lock_guard<mutex> decode_lock(global_decode_mutex_);
+			i += chunk_sample_count) {
 
 		const int64_t chunk_end = min(
 			i + chunk_sample_count, sample_count);
@@ -338,6 +343,9 @@ void DecoderStack::decode_proc()
 
 	assert(segment_);
 
+	// Prevent any other decode threads from accessing libsigrokdecode
+	lock_guard<mutex> srd_lock(global_srd_mutex_);
+
 	// Create the session
 	srd_session_new(&session);
 	assert(session);
@@ -345,12 +353,10 @@ void DecoderStack::decode_proc()
 	// Create the decoders
 	const unsigned int unit_size = segment_->unit_size();
 
-	for (const shared_ptr<decode::Decoder> &dec : stack_)
-	{
+	for (const shared_ptr<decode::Decoder> &dec : stack_) {
 		srd_decoder_inst *const di = dec->create_decoder_inst(session);
 
-		if (!di)
-		{
+		if (!di) {
 			error_message_ = tr("Failed to create decoder instance");
 			srd_session_destroy(session);
 			return;
@@ -409,8 +415,7 @@ void DecoderStack::annotation_callback(srd_proto_data *pdata, void *decoder)
 	const auto r = d->class_rows_.find(make_pair(decc, a.format()));
 	if (r != d->class_rows_.end())
 		row_iter = d->rows_.find((*r).second);
-	else
-	{
+	else {
 		// Failing that, use the decoder as a key
 		row_iter = d->rows_.find(Row(decc));	
 	}